winfrom 为datagridview 添加行号

为datagridview添加行号

1. 注册datagridview的RowPostPaint事件

2. 在事件里手动画上行号

using System;

using System.Collections.Generic;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace CommonUtil

{

public class DataGridViewUtil

{

/// <summary>

/// 为datagridView行添加行号

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

public static void DataGridView_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)

{

var dataGridView1 = (DataGridView)sender;

Color color = dataGridView1.DefaultCellStyle.ForeColor;

if (dataGridView1.Rows[e.RowIndex].Selected)

color = dataGridView1.DefaultCellStyle.SelectionForeColor;

else

color = dataGridView1.DefaultCellStyle.ForeColor;

using (SolidBrush b = new SolidBrush(color))

{

e.Graphics.DrawString((e.RowIndex + 1).ToString(), e.InheritedRowStyle.Font, b,

e.RowBounds.Location.X + 20, e.RowBounds.Location.Y + 6);

}

}

}

}